Day

BUN (mg/dL)

P value^b

AGN

Controls

0

21.0 (12.49)

<0.001

3

22.0 (12.37)

<0.001

7

20.0 (11.35)

11.0 (9.16)^a

0.002

28

14.0 (7.19)

0.032

≥60

11.0 (7.14)

0.712

P value^c < 0.003